visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2024-06-12 13:30 
일시 Jun 12th (Wed), 13:30pm 
장소 E6, #1501 
연사 Dr. Jun Ho Son (Cornell University) 
아래와 같이 세미나를 개최하고자 하오니, 관심있는 분들의 많은 참석 부탁드립니다.
 
Date: 13:30 pm, 12th Jun (Wed)
Place: E6, #1501
Speaker: Dr. Jun Ho Son (Cornell University)
Title: Competition between superconductivity and density waves in spin-degenerate and spin-orbit-coupled Bernal bilayer graphene
Abstract: 

Inspired by recent observations of the absence and presence of superconductivity in Bernal-stacked bilayer graphene (BBG) and BBG-WSe2 heterostructure, we investigate all possible competing instabilities driven by van Hove singularities (vHS) near the Fermi level in spin-degenerate and spin-split BBG. By performing a parquet renormalization group analysis in both systems, we identify an incommensurate intra-valley charge density wave (CDW) as the dominant instability in spin-degenerate BBG. Moreover, we find that lifting the spin degeneracy by the Ising spin-orbit coupling from the WSe2 monolayer or by applying an in-plane magnetic field restores superconductivity as the primary instability since intra-valley CDW is suppressed when the vHS are spin-polarized. We also discuss future experiments to confirm our proposed scenarios.

번호 날짜 장소 제목
295 2019-07-21 12:00  E6-2,# 5318  Challenges and Opportunities in Theoretical Particle Physics 2019 file
294 2022-07-21 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  Quintessential axions file
293 2024-07-22 14:00  E6-2 #3441  Nonthermal electronic orders in photo-doped Mott insulators
292 2024-07-23 16:00  KI Building(E4) Matrix Hall(2F)  Spin Conversion Research Towards Novel Spintronic Functionalities file
291 2019-07-25 16:00  E6-2, #1323  Band topology of twisted bilayer graphene file
290 2024-07-25 16:00  Rm. 3441, E6-2 (Advanced Physics Lecture Hall)  Generation and Certification of Optical Quantum States for Information Processing file
289 2023-07-26 10:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  [CAPP Seminar] Am Expansive Search for Dark Matter with ADMX and DM Radio
288 2018-07-26 14:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Inflation in String Theory and Backreaction file
287 2018-07-26 14:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Inflation in String Theory and Backreaction file
286 2018-07-27 15:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima file
285 2018-07-27 15:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima file
284 2019-07-30 16:00  #1323, E6-2  Dirac fermions and flat bands in correlated kagome metals file
283 2019-07-31 16:00  E6-2, #1323  Features of ballistic superconducting graphene file
282 2024-07-03 16:00  E6-2 #2502  [High Energy Theory Seminar] Holographic duals of Higgsed Dpb(BCD)
281 2019-07-08 14:00  E6, #1322  Ultrabroadband squeezed pulses and their relation to relativity file
280 2018-07-09 14:00  #1323, E6-2  The principles of collective learning file
279 2017-07-14 15:00  #1323 (E6-2. 1st fl.)  Chiral anomaly in disordered Weyl semimetals file
278 2016-06-01 16:00  #1323(E6-2 1st fl.)  Laboratory experiments relevant to mesospheric clouds, Saturn’s rings & astrophysical jets
» 2024-06-12 13:30  E6, #1501  Competition between superconductivity and density waves in spin-degenerate and spin-orbit-coupled Bernal bilayer graphene
276 2024-06-12 16:00  E6-2, #1323  New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part2 file